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annotate OrthancFramework/Sources/Images/PixelTraits.h @ 4706:dbee8bd8ee1f

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 22 Jun 2021 09:13:03 +0200
parents d9473bd5ed43
children 7053502fbf97
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "../Compatibility.h" // For ORTHANC_FORCE_INLINE
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26 #include "../Enumerations.h"
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27
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28 #include <limits>
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29
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30 namespace Orthanc
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31 {
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32 template <PixelFormat format,
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33 typename _PixelType>
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34 struct IntegerPixelTraits
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35 {
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36 typedef _PixelType PixelType;
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37
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38 ORTHANC_FORCE_INLINE
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39 static PixelFormat GetPixelFormat()
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40 {
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41 return format;
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42 }
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43
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44 ORTHANC_FORCE_INLINE
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45 static PixelType IntegerToPixel(int64_t value)
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46 {
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47 if (value < static_cast<int64_t>(std::numeric_limits<PixelType>::min()))
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48 {
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49 return std::numeric_limits<PixelType>::min();
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50 }
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51 else if (value > static_cast<int64_t>(std::numeric_limits<PixelType>::max()))
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52 {
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53 return std::numeric_limits<PixelType>::max();
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54 }
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55 else
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56 {
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57 return static_cast<PixelType>(value);
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58 }
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59 }
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60
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61 ORTHANC_FORCE_INLINE
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62 static void SetZero(PixelType& target)
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63 {
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64 target = 0;
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65 }
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66
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67 ORTHANC_FORCE_INLINE
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68 static void SetMinValue(PixelType& target)
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69 {
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70 target = std::numeric_limits<PixelType>::min();
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71 }
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72
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73 ORTHANC_FORCE_INLINE
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74 static void SetMaxValue(PixelType& target)
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75 {
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76 target = std::numeric_limits<PixelType>::max();
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77 }
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78
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79 ORTHANC_FORCE_INLINE
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80 static void Copy(PixelType& target,
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81 const PixelType& source)
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82 {
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83 target = source;
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84 }
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85
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86 ORTHANC_FORCE_INLINE
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87 static float PixelToFloat(const PixelType& source)
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88 {
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89 return static_cast<float>(source);
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90 }
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91
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92 ORTHANC_FORCE_INLINE
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93 static void FloatToPixel(PixelType& target,
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94 float value)
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95 {
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96 value += 0.5f;
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97 if (value < static_cast<float>(std::numeric_limits<PixelType>::min()))
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98 {
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99 target = std::numeric_limits<PixelType>::min();
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100 }
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101 else if (value > static_cast<float>(std::numeric_limits<PixelType>::max()))
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102 {
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103 target = std::numeric_limits<PixelType>::max();
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104 }
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105 else
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106 {
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107 target = static_cast<PixelType>(value);
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108 }
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109 }
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110
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111 ORTHANC_FORCE_INLINE
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112 static bool IsEqual(const PixelType& a,
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113 const PixelType& b)
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114 {
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115 return a == b;
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116 }
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117 };
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118
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119
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120 template <PixelFormat Format>
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121 struct PixelTraits;
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122
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123
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124 template <>
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125 struct PixelTraits<PixelFormat_Grayscale8> :
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126 public IntegerPixelTraits<PixelFormat_Grayscale8, uint8_t>
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127 {
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128 };
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129
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130
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131 template <>
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132 struct PixelTraits<PixelFormat_Grayscale16> :
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133 public IntegerPixelTraits<PixelFormat_Grayscale16, uint16_t>
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134 {
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135 };
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136
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137
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138 template <>
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139 struct PixelTraits<PixelFormat_SignedGrayscale16> :
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140 public IntegerPixelTraits<PixelFormat_SignedGrayscale16, int16_t>
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141 {
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142 };
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143
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144
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145 template <>
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146 struct PixelTraits<PixelFormat_Grayscale32> :
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147 public IntegerPixelTraits<PixelFormat_Grayscale32, uint32_t>
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148 {
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149 };
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150
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151
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152 template <>
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153 struct PixelTraits<PixelFormat_Grayscale64> :
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154 public IntegerPixelTraits<PixelFormat_Grayscale64, uint64_t>
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155 {
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156 };
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157
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158
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159 template <>
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160 struct PixelTraits<PixelFormat_RGB24>
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161 {
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162 struct PixelType
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163 {
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164 uint8_t red_;
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165 uint8_t green_;
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166 uint8_t blue_;
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167 };
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168
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169 ORTHANC_FORCE_INLINE
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170 static PixelFormat GetPixelFormat()
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171 {
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172 return PixelFormat_RGB24;
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173 }
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174
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175 ORTHANC_FORCE_INLINE
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176 static void SetZero(PixelType& target)
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177 {
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178 target.red_ = 0;
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179 target.green_ = 0;
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180 target.blue_ = 0;
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181 }
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182
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183 ORTHANC_FORCE_INLINE
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184 static void Copy(PixelType& target,
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185 const PixelType& source)
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186 {
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187 target.red_ = source.red_;
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188 target.green_ = source.green_;
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189 target.blue_ = source.blue_;
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190 }
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191
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192 ORTHANC_FORCE_INLINE
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193 static bool IsEqual(const PixelType& a,
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194 const PixelType& b)
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195 {
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196 return (a.red_ == b.red_ &&
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197 a.green_ == b.green_ &&
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198 a.blue_ == b.blue_);
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199 }
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200
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201 ORTHANC_FORCE_INLINE
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202 static void FloatToPixel(PixelType& target,
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203 float value)
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204 {
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205 uint8_t v;
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206 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value);
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207
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208 target.red_ = v;
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209 target.green_ = v;
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210 target.blue_ = v;
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211 }
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212 };
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213
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214
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215 template <>
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216 struct PixelTraits<PixelFormat_BGRA32>
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217 {
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218 struct PixelType
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219 {
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220 uint8_t blue_;
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221 uint8_t green_;
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222 uint8_t red_;
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223 uint8_t alpha_;
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224 };
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225
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226 ORTHANC_FORCE_INLINE
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227 static PixelFormat GetPixelFormat()
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228 {
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229 return PixelFormat_BGRA32;
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230 }
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231
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232 ORTHANC_FORCE_INLINE
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233 static void SetZero(PixelType& target)
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234 {
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235 target.blue_ = 0;
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236 target.green_ = 0;
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237 target.red_ = 0;
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238 target.alpha_ = 0;
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239 }
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240
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241 ORTHANC_FORCE_INLINE
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242 static void Copy(PixelType& target,
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243 const PixelType& source)
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244 {
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245 target.blue_ = source.blue_;
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246 target.green_ = source.green_;
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247 target.red_ = source.red_;
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248 target.alpha_ = source.alpha_;
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249 }
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250
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251 ORTHANC_FORCE_INLINE
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252 static bool IsEqual(const PixelType& a,
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253 const PixelType& b)
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254 {
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255 return (a.blue_ == b.blue_ &&
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256 a.green_ == b.green_ &&
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257 a.red_ == b.red_ &&
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258 a.alpha_ == b.alpha_);
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259 }
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260
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261 ORTHANC_FORCE_INLINE
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262 static void FloatToPixel(PixelType& target,
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263 float value)
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264 {
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265 uint8_t v;
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266 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value);
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267
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268 target.blue_ = v;
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269 target.green_ = v;
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270 target.red_ = v;
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271 target.alpha_ = 255;
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272 }
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273 };
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274
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275
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276 template <>
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277 struct PixelTraits<PixelFormat_RGBA32>
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278 {
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279 struct PixelType
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280 {
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281 uint8_t red_;
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282 uint8_t green_;
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283 uint8_t blue_;
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284 uint8_t alpha_;
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285 };
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286
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287 ORTHANC_FORCE_INLINE
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288 static PixelFormat GetPixelFormat()
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289 {
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290 return PixelFormat_RGBA32;
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291 }
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292
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293 ORTHANC_FORCE_INLINE
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294 static void SetZero(PixelType& target)
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295 {
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296 target.red_ = 0;
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297 target.green_ = 0;
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298 target.blue_ = 0;
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299 target.alpha_ = 0;
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300 }
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301
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302 ORTHANC_FORCE_INLINE
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303 static void Copy(PixelType& target,
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304 const PixelType& source)
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305 {
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306 target.red_ = source.red_;
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307 target.green_ = source.green_;
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308 target.blue_ = source.blue_;
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309 target.alpha_ = source.alpha_;
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310 }
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311
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312 ORTHANC_FORCE_INLINE
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313 static bool IsEqual(const PixelType& a,
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314 const PixelType& b)
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315 {
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316 return (a.red_ == b.red_ &&
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317 a.green_ == b.green_ &&
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318 a.blue_ == b.blue_ &&
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319 a.alpha_ == b.alpha_);
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320 }
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321
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322 ORTHANC_FORCE_INLINE
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323 static void FloatToPixel(PixelType& target,
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324 float value)
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325 {
65699fcb4e99 PixelTraits<PixelFormat_RGBA32>
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326 uint8_t v;
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327 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value);
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328
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329 target.red_ = v;
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330 target.green_ = v;
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331 target.blue_ = v;
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332 target.alpha_ = 255;
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333 }
65699fcb4e99 PixelTraits<PixelFormat_RGBA32>
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334 };
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335
65699fcb4e99 PixelTraits<PixelFormat_RGBA32>
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336
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diff changeset
337 template <>
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338 struct PixelTraits<PixelFormat_Float32>
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339 {
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340 typedef float PixelType;
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341
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342 ORTHANC_FORCE_INLINE
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343 static PixelFormat GetPixelFormat()
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344 {
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345 return PixelFormat_Float32;
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346 }
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347
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348 ORTHANC_FORCE_INLINE
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349 static void SetZero(PixelType& target)
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350 {
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351 target = 0.0f;
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352 }
89b789366596 Grayscale64 pixel format
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diff changeset
353
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354 ORTHANC_FORCE_INLINE
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diff changeset
355 static void Copy(PixelType& target,
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diff changeset
356 const PixelType& source)
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357 {
89b789366596 Grayscale64 pixel format
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358 target = source;
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diff changeset
359 }
89b789366596 Grayscale64 pixel format
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diff changeset
360
89b789366596 Grayscale64 pixel format
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diff changeset
361 ORTHANC_FORCE_INLINE
89b789366596 Grayscale64 pixel format
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diff changeset
362 static bool IsEqual(const PixelType& a,
89b789366596 Grayscale64 pixel format
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diff changeset
363 const PixelType& b)
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parents: 2493
diff changeset
364 {
89b789366596 Grayscale64 pixel format
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diff changeset
365 float tmp = (a - b);
89b789366596 Grayscale64 pixel format
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diff changeset
366
89b789366596 Grayscale64 pixel format
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parents: 2493
diff changeset
367 if (tmp < 0)
89b789366596 Grayscale64 pixel format
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diff changeset
368 {
89b789366596 Grayscale64 pixel format
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diff changeset
369 tmp = -tmp;
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diff changeset
370 }
89b789366596 Grayscale64 pixel format
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diff changeset
371
89b789366596 Grayscale64 pixel format
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diff changeset
372 return tmp <= std::numeric_limits<float>::epsilon();
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diff changeset
373 }
89b789366596 Grayscale64 pixel format
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374
89b789366596 Grayscale64 pixel format
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diff changeset
375 ORTHANC_FORCE_INLINE
3671
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diff changeset
376 static void SetMinValue(PixelType& target)
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diff changeset
377 {
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
378 // std::numeric_limits<float>::lowest is not supported on
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
379 // all compilers (for instance, Visual Studio 9.0 2008)
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
380 target = -std::numeric_limits<float>::max();
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
381 }
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
Benjamin Golinvaux <bgo@osimis.io>
parents: 3640
diff changeset
382
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
Benjamin Golinvaux <bgo@osimis.io>
parents: 3640
diff changeset
383 ORTHANC_FORCE_INLINE
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
Benjamin Golinvaux <bgo@osimis.io>
parents: 3640
diff changeset
384 static void SetMaxValue(PixelType& target)
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
385 {
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
386 target = std::numeric_limits<float>::max();
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
387 }
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
Benjamin Golinvaux <bgo@osimis.io>
parents: 3640
diff changeset
388
3c4269229566 Added functions to retrieve min and max possible values for floating-point pixels
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parents: 3640
diff changeset
389 ORTHANC_FORCE_INLINE
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diff changeset
390 static void FloatToPixel(PixelType& target,
89b789366596 Grayscale64 pixel format
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diff changeset
391 float value)
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diff changeset
392 {
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393 target = value;
89b789366596 Grayscale64 pixel format
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394 }
89b789366596 Grayscale64 pixel format
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diff changeset
395
89b789366596 Grayscale64 pixel format
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diff changeset
396 ORTHANC_FORCE_INLINE
89b789366596 Grayscale64 pixel format
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diff changeset
397 static float PixelToFloat(const PixelType& source)
89b789366596 Grayscale64 pixel format
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diff changeset
398 {
89b789366596 Grayscale64 pixel format
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399 return source;
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400 }
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diff changeset
401 };
2487
be1dbb1dcdd6 PixelTraits and ImageTraits
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
402 }